Meguiars Posted June 21, 2015 Share Posted June 21, 2015 Hi, i have tried "again" to get my Nissan Q45 MAF to work with my ms3pro. Im on MAP now but ive heard that the car runs smoother with maf. The car is a Datsun 280z with "81 L28et Turbo engine from nissan. Or should i get a Nissan 350z maf? I have wired it as i "think" it should be according to ms manual. But it wont change the voltage or registrating any airflow, i have read somewhere that i should use a pull up resistor to get any readings. Is that correct? And f so what resistor dio i need to use? Thanx Quote Link to comment Share on other sites More sharing options...
NewZed Posted June 22, 2015 Share Posted June 22, 2015 Don't know what manual you're using, or what your settings are, or how you wired your Q45 MAF, or what you're looking at when you say the MAF won't change voltage or registrate ariflow, but there's a ton of good information here that might help you out. No mention of a pull-up resistor. http://www.msextra.com/doc/pdf/html/ms3pro_manual.pdf/ms3pro_manual-38.html Here's page 1 - http://www.msextra.com/doc/pdf/html/ms3pro_manual.pdf/ms3pro_manual-1.html Here's a setting that needs to be changed to "MAF" - http://www.msextra.com/doc/pdf/html/ms3pro_manual.pdf/ms3pro_manual-139.html Don't have MS, of any version, but it looks like fun... Quote Link to comment Share on other sites More sharing options...
NewZed Posted June 22, 2015 Share Posted June 22, 2015 (edited) And a bunch of MAF settings that have to be set - http://www.msextra.com/doc/pdf/html/ms3pro_manual.pdf/ms3pro_manual-140.html Pretty sure I saw that you can run on MAP and use the MAF for other things. Probably what you're doing. But it allows you to drive the car until the MAF is right. Good luck. Edited June 22, 2015 by NewZed Quote Link to comment Share on other sites More sharing options...
Meguiars Posted June 22, 2015 Author Share Posted June 22, 2015 well the problem is that the maf voltage dont change when i rev the car. all wiring is ok, the manual have been read 100 times. the car runs fine on map. Quote Link to comment Share on other sites More sharing options...
98blackbell Posted June 22, 2015 Share Posted June 22, 2015 We took the z32 maf off runs good on map. Quote Link to comment Share on other sites More sharing options...
winstonusmc Posted June 22, 2015 Share Posted June 22, 2015 (edited) I wired my MAF before I switched from MAP. Just set up a Generic sensor and view it in a guage to see if its properly wired. My MAF is wired into "SpareADC" with no pullup, just directly wired. On the Q45 MAF, there are three wires, 12v, Signal, ground. Should be simple to wire. Could have a messed up MAF. Quick edit: I have an L28ET on a 240z and currently run a G35/350Z sensor but have run a 300zx "N62" sensor in the past. Edited June 22, 2015 by winstonusmc Quote Link to comment Share on other sites More sharing options...
Meguiars Posted June 22, 2015 Author Share Posted June 22, 2015 I wired my MAF before I switched from MAP. Just set up a Generic sensor and view it in a guage to see if its properly wired. My MAF is wired into "SpareADC" with no pullup, just directly wired. On the Q45 MAF, there are three wires, 12v, Signal, ground. Should be simple to wire. Could have a messed up MAF. Quick edit: I have an L28ET on a 240z and currently run a G35/350Z sensor but have run a 300zx "N62" sensor in the past. Do you have a good working table for the MAF G35 that you got, perhaps i should buy one of those instead. Or a tune that you kan post. Thanx Quote Link to comment Share on other sites More sharing options...
winstonusmc Posted June 22, 2015 Share Posted June 22, 2015 Well, I would, but I seem to be maxing out my MAF. This should be impossible with the stock turbo. Not sure why because the VQ35 MAF should be good for 400hp, which my car is not even close. I need to check my wiring and see why its off, not sure yet. Quote Link to comment Share on other sites More sharing options...
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